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  • 1
    Electronic Resource
    Electronic Resource
    A data-base system for the thermophysical properties of 400 pure fluids and their binary mixtures (1989)
    Springer
    International journal of thermophysics 10 (1989), S. 727-738 
    Details
    ISSN: 1572-9567
    Keywords: data-base system ; density ; dielectric constant ; enthalpy ; entropy ; heat capacity ; refractive index ; surface tension ; thermal conductivity ; vapor pressure ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In order to provide the newest and most reliable numerical data of thermophysical properties of fluids to the scientific and technical community as quickly as possible, the present data-base system was designed and constructed. This data base is concerned with 12 kinds of thermophysical properties at 7 defined physical states for about 400 pure fluids and their binary mixtures. The present system is constructed by means of a data-base management system, INQ, on our computer ACOS series System-2020 produced by Nippon Electric Co. Ltd. The data base is usable as (i) the conversational processing by TSS, (ii) the tabulation of property data in batch processing, and (iii) one of the subroutine libraries in the computation of a user's program. For users' convenience, 10 kinds of application programs have been prepared for the multipurpose retrievals, and anyone can use this data base liberally without any special knowledge on the structure or languages of this system. Furthermore, the function of graphic display of property data has been added recently.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00507992
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  • 2
    Electronic Resource
    Electronic Resource
    Viscosity and density of binary mixtures of cyclohexane with n-octane, n-dodecane, and n-hexadecane under high pressures (1991)
    Springer
    International journal of thermophysics 12 (1991), S. 245-264 
    Details
    ISSN: 1572-9567
    Keywords: alkanes ; cyclohexane ; density ; dodecane ; hexadecane ; mixtures ; octane ; Tait equation ; viscometer ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The viscosity and density of three binary mixtures of cyclohexane with n-octane, n-dodecane, and n-hexadecane have been measured at 298, 323, and 348 K at pressures up to 150 MPa or freezing pressures. The measurements of the viscosity were performed by a torsionally vibrating crystal viscometer on a relative basis using benzene and cyclohexane as reference materials. The density was measured using a high-pressure burette apparatus. The uncertainties of the measurements are estimated to be less than 2% for viscosity and 0.1% for density, respectively. The effects of temperature, pressure, density, and composition on the viscosity are discussed. Applicabilities of several empirical correlating equations to the viscosity data were examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500750
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  • 3
    Electronic Resource
    Electronic Resource
    Viscosity of methanol and 2-methyl-2-propanol mixtures under high pressures (1991)
    Springer
    International journal of thermophysics 12 (1991), S. 459-468 
    Details
    ISSN: 1572-9567
    Keywords: alcohols ; capillary viscometer ; methanol ; 2-methyl-2-propanol ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new capillary viscometer has been constructed and the viscosities of methanol, 2-methyl-2-propanol, and their mixtures have been measured at two temperatures, 303 and 323 K, and at pressures up to 30 MPa. Simple empirical equations are given to represent the pressure and composition dependences of the viscosity within the experimental uncertainty of ±2%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502362
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  • 4
    Electronic Resource
    Electronic Resource
    Isotope effect on the viscosity of benzene and cyclohexane mixtures under high pressures (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 67-77 
    Details
    ISSN: 1572-9567
    Keywords: benzene ; cyclohexane ; deuteriobenzene ; isotope effect ; molar volume ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Viscosities of binary mixtures of cyclohexane with protiobenzene, C6H6, or deuteriobenzene, C6D6, have been measured at 298 and 323 K and at pressures up to 50 MPa using a capillary viscometer. The viscosities of these mixtures obtained were represented by a empirical Tait-type equation within the experimental uncertainty of ±2%. The effect of the isotopic substitution on the viscosity has been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00522662
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  • 5
    Electronic Resource
    Electronic Resource
    Viscosity of aqueous solutions of 1,2-ethanediol and 1,2-propanediol under high pressures (1988)
    Springer
    International journal of thermophysics 9 (1988), S. 511-523 
    Details
    ISSN: 1572-9567
    Keywords: aqueous alcohol solution ; ethanediol ; ethylene glycol ; falling-cylinder viscometer ; free-volume theory ; high pressure ; pressure effect ; propanediol ; propylene glycol ; viscosity ; water
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New experimental data on the viscosity of aqueous solutions of 1,2-ethanediol (ethylene glycol) and 1,2-propanediol (propylene glycol) are presented at 298 and 323 K under pressures up to 120 MPa. The measurements were performed by a falling-cylinder viscometer on a relative basis with an uncertainty of less than ±2%. The viscosity of these aqueous solutions at a constant temperature and pressure increases monotonously with increasing concentrations of diols (glycols) and is slightly lower than the mole fraction average value at each composition. The viscosity also increases almost linearly with pressure at a constant temperature and composition. The pressure coefficient of the viscosity, (∂η/∂P)T,x, increases with decreasing temperature and increasing concentrations of diols. The experimental results are correlated with pressure, density, and composition by several empirical equations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00503150
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  • 6
    Electronic Resource
    Electronic Resource
    Thermophysical properties of liquids at high pressures (1984)
    Springer
    International journal of thermophysics 5 (1984), S. 23-40 
    Details
    ISSN: 1572-9567
    Keywords: density ; liquid ; pressure ; Tait-type equation ; thermal conductivity ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Most of the thermophysical properties of fluids are greatly altered at high pressures, and the studies of these changes are of much scientific and technological importance. In this paper, the effects of temperature and pressure on the density, viscosity, and thermal conductivity of various liquids are described briefly, based on recent experimental results from the author's laboratory. The objectives of this investigation, methods of measurements, and some of the experimental results are reviewed, as well as the present aspects in this field. Several important problems to be interpreted are also pointed out from the present measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502077
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  • 7
    Electronic Resource
    Electronic Resource
    Viscosities of six 1-Alkanols at temperatures in the range 298–348 K and pressures up to 200 MPa (1989)
    Springer
    International journal of thermophysics 10 (1989), S. 833-843 
    Details
    ISSN: 1572-9567
    Keywords: decanol ; dodecanol ; falling-body viscometer ; free volume ; hexadecanol ; hexanol ; high pressure ; octanol ; significant structure theory ; tetradecanol ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Viscosities of six higher 1-alkanols (1-hexanol, 1-octanol, 1-decanol, 1-dodecanol, 1-tetradecanol, and 1-hexadecanol) have been determined at temperatures from 298 to 348 K and pressures up to 200 MPa. The viscosity measurements were performed using a falling-body viscometer with an uncertainty of ±5%. Simple equations are presented to express the experimental viscosities as a function of temperature and pressure within the experimental uncertainty. The relationship between the viscosity and the density of these alkanols is discussed in terms of the significant structure theory extended to high pressures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00514479
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  • 8
    Electronic Resource
    Electronic Resource
    Density and viscosity of linear perfluoropolyethers under high pressures (1989)
    Springer
    International journal of thermophysics 10 (1989), S. 857-870 
    Details
    ISSN: 1572-9567
    Keywords: compressibility ; density ; fluorocarbon oil ; free-volume equation ; high pressure ; perfluoropolyether ; specific volume ; Tait equation ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New experimental data on the density and viscosity of linear, unbranched perfluoropolyethers are presented at temperatures from 273 to 333 K and pressures up to 180 MPa. The measurements were carried out by a high-pressure burrette apparatus and a falling-cylinder viscometer. The uncertainties of the measurements are estimated to be less than 0.09% for the specific volume and 2.5% for the viscosity. The P-V data at each temperature are correlated satisfactorily by the Tait equation. The viscosity data are also analyzed and correlated with pressure or molar volume by several empirical and theoretical equations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00514481
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  • 9
    Electronic Resource
    Electronic Resource
    Viscosity of (water + alcohol) mixtures under high pressure (1987)
    Springer
    International journal of thermophysics 8 (1987), S. 147-163 
    Details
    ISSN: 1572-9567
    Keywords: alcohols ; aqueous alcohol solutions ; ethanol ; free-volume theory ; methanol ; 2-methyl-2-propanol ; pressure effect ; propanol ; Tait equation ; t-butyl alcohol ; viscosity ; water
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New experimental viscosity data are presented for aqueous solutions of methanol, ethanol, 1-propanol, 2-propanol, and 2-methyl-2-propanol (t-butyl alcohol) in the temperature range from 283 to 348 K and pressures up to 120 MPa. The viscosity measurements were performed using a falling-cylinder viscometer on a relative basis with an uncertainty of less than 2%. The viscosity of pure alcohols and aqueous solutions is found to increase almost linearly with increasing pressure, whereas that of water decreases slightly with pressure at temperatures below 298 K. As for the composition dependence of the viscosity, a distinct maximum appears near 0.3–0.4 mole fraction of alcohol on all isobars at each temperature. The viscosity maximum shifts gradually to a higher alcohol concentration with increasing temperature and pressure. The isobars of aqueous 2-propanol and 2-methyl-2-propanol solutions have another shallow minimum near 0.9 mole fraction of alcohol below 323 K. The experimental results were analized empirically by a Tait-type equation and a free-volume theory. It was found that the isothermal viscosity data were satisfactorily correlated by these equations as functions of pressure and composition or of density and composition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00515199
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  • 10
    Electronic Resource
    Electronic Resource
    Viscosity of twelve hydrocarbon liquids in the temperature range 298–348 K at pressures up to 110 MPa (1982)
    Springer
    International journal of thermophysics 3 (1982), S. 289-305 
    Details
    ISSN: 1572-9567
    Keywords: aromatic hydrocarbons ; cyclohexane ; free volume expression ; hard-sphere theory ; high pressure ; n-alkanes ; torsionally vibrating crystal method ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New experimental data on the viscosity of 12 organic liquids are presented at temperatures of 25, 30, 50, and 75°C and at pressures up to 110 MPa. The liquids measured are five n-alkanes (C6, C7, C8, C10, C12), cyclohexane, and six aromatic hydrocarbons (benzene, toluene, ethylbenzene, o-, m-, p-xylenes). The measurements were performed using a torsionally vibrating crystal method on a relative basis with an uncertainty less than 2%. A linear relationship between fluidity and molar volume, which is predicted from the hard-sphere theory, fails at pressures above 50 MPa. The rough hard-sphere model proposed by Chandler provides a reasonable representation of the data for aromatic hydrocarbons, while for n-alkanes the agreement is not satisfactory because of an aspherical shape of molecules. The viscosity data can be correlated well with the molar volume by a free-volume expression and also can be represented as a function of pressure by a similar expression to the Tait equation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502346
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